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Summary of Contents for UNI-T UT15B
- Page 2 Preface Thank you for purchasing this brand new multi-meter. In order to use this product safely and correctly, please read this manual thoroughly, especially the Safety Instructions part. After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to the meter, for future reference.
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Page 3: Table Of Contents
This series of products also give full function error detecting 3. Accessories ----------------------------------------------------------------------------- 5 protection of up to 30kVA energy, to ensure safer operation. UT15B PRO/UT17B PRO comes with CE, cETLus certification according to CAT III 1000V/CAT IV 600V and UT18B PRO comes with CE, cETLus certification 4. -
Page 4: Accessories
10) Do not change the internal circuit of the meter to avoid damage to the meter and user! 2) For UT15B PRO/ UT17B PRO: 11) Clean the meter casing with damp cloth and mild detergent. Do not use abrasives or solvents! CAT III 1000V 12) Before use verify tester operation by measuring a known voltage that is within the rating of this unit. -
Page 5: Electrical Symbols
UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual V. Electric Symbols TESTING IN CAT III/IV MEASUREMENT LOCATIONS Ensure the test lead shield pressed firmly in place. Failure to use the CAT III/IV shield increases arc-flash risk. Direct current... -
Page 6: General Specifications
In 1V/m radio-frequency (RF) field: total accuracy = specified accuracy + 5% of range. No specified index CAT III 1000V for radio-frequency field over 1V/m. 12). IP rating UT15B PRO/UT17B PRO IP40; UT18B PRO (N/A) Figure 1 13). Recommended use environment:Indoor use... -
Page 7: Lcd Display
UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual X. Function Selection Knob and Buttons VIII. LCD display (Figure 2) Description Functions HTN screen V 、V 、mV AC/DC voltage measurement Ω Resistance measurement Figure 2 Diode PN junction voltage measurement... -
Page 8: Measurement Operation Instruction
! MIN button (UT15B PRO): press to enter manual range mode and display the minimum value. To exit MAX/ MIN measurement mode, press this button for over 2 seconds or switch the knob. (Only suitable for V 1. - Page 9 UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual 2. DC Voltage Measurement (Figure 4) 3. Resistance and Circuit Continuity Measurement (Figure 5a) 1) Turn the function selection knob to the resistance scale. 1) Turn the function selection knob to the DC voltage scale.
- Page 10 UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual 5.Capacitance Measurement (Figure 6) Error of 0.1Ω~0.2Ω will be resulted by test leads in low resistance measurement. In order to acquire an 1) Turn the function selection knob to the capacitance accurate reading, users should short circuit the test leads and choose REL relative measurement mode.
- Page 11 UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual 6. AC/DC Current Measurement (Figure 7) 7. Frequency and Duty Cycle Measurement 1) Turn the function selection knob to the A /mA /μA scale. (UT17B PRO/UT18B PRO) 2) When the scale is A , insert the red test lead to the A When measuring AC voltage or current, press Hz/% to enter port.
- Page 12 UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual 9. LED Measurement (UT18B PRO) (Figure 9) 10. Other functions 1) For UT18B PRO, the LED displays OV when turning the function selection knob to the LED TEST scale. After powering on and its full-screen display, the meter is in the normal measurement status. ErrE will be 2) Panel jack test: The LED light turns on immediately when it is inserted, green light represents positive pole.
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Page 13: Technical Specifications
UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual XII.Technical Specifications 2. AC Voltage Measurement Accuracy: ±(a% reading + b number); 1 year warranty period Environment temperature: 23°C±5°C (73.4°F±9°F); Relative temperature: ≤75% Range Resolution Accuracy 600.0mV 0.1mV Warning: 6.000V 0.001V... - Page 14 UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual 3. Resistance Measurement 5. Capacitance Measurement Range Accuracy Resolution Range Accuracy Resolution 600.0Ω 0.1Ω Under REL mode: ±(4.0%+8) 6.000nF 0.001nF 6.000kΩ 0.001kΩ 60.00nF 0.01nF ±(0.5％+2） 60.00kΩ 0.01kΩ 600.0nF 0.1nF ±(2.0%+5) 600.0kΩ...
- Page 15 UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual Overload protection: 1000V-PTC 6. Frequency/Duty Cycle Measurement (UT17B PRO/UT18B PRO) Remark: configured point K-type (Ni-Cr ~ Ni-Si) thermocouple is only applicable for temperature below Range Accuracy 230°C/446°F. Resolution ～ ±(0.1%+3) 10Hz～1MHz...
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Page 16: Maintenance
UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual 9. AC Current Measurement 10. LED Measurement (UT18B PRO) Range Accuracy Resolution LED panel jack Positive indicator light (green) LED test 600.0μA 0.1μA µA Test lead terminal Display positive/negative voltage value 6000μA... - Page 17 UT15B PRO/UT17B/UT18B PRO User Manual UT15B PRO/UT17B/UT18B PRO User Manual 2. Battery/Fuse Replacement (Figure 10) 2) Fuse replacement: The meter is unable to operate normally when the fuse is broken by voltage misdetection 1) Battery replacement: If LCD displays low battery symbol , batteries should be replaced in time to or overcurrent, so the fuse should be replaced in time.
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